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In episode 6, Sub-Zero reappeared in Nether as Cyber Sub-Zero and fight with his brother. Cyber Sub-Zero froze Noob Saibot with Freeze Ray, then Cyrax and Sektor reappeared after they got revived. Cyrax and Sektor used blue tail whip to capture SpongeBob, so Ichigo decided to save SpongeBob by kicking their hands with Rider Kick. Cyber-Sub Zero fight with Cyrax and Sektor, and got defeated. Of course, Cyber Sub-Zero forgot about Noob Saibot and decided to finish by kick him. SpongeBob asks what happened and what is that. Then, Gatanozoa appears and ordered Cyrax and Sektor to finish SpongeBob. Sektor teleported while Cyrax holding SpongeBob. Then, both of them separate SpongeBob's body and throw the body to the lava. Gatanozoa disappears and Godzilla appeared to reattached SpongeBob's body and revived him. SpongeBob's body was put on Godzilla's body. Godzilla finished Cyrax and Sektor by using Blue Spiral Breath and exploded. Shang Tsung appears to take over Godzilla's soul and disappears. Shang Tsung using fire breath, but Cyber Sub-Zero froze it. Gatanozoa reappeared and summon Dragon King Onaga. At the nether, SpongeBob reappeared as SSJG SpongeBob and fight with Dragon King Onaga. Onaga spits a big fire at SSJG SpongeBob, but it didn't affect him. SSJG SpongeBob using Mebium Shoot to attack Onaga. SSJG SpongeBob jumps and using Zepellion Ray against Onaga. Lastly, SSJG SpongeBob using SpongeBob Kick to finished him. Because of that, the gang and Cyber Sub-Zero got teleported from Nether to the Krusty Krab. At the Krusty Krab, the gang is saved once more. Cyber Sub-Zero leaving the Krusty Krab.

In episode 8 during the battle between SpongeBob and Shang Tsung, Cyber Sub-Zero appears and told SSJG SpongeBob not to give up and fight with Zetton (Shang Tsung in disguise). Zetton tried to shoot the fireball at him, but Cyber Sub-Zero used his Ice Clone as a barrier and explodes. Cyber Sub-Zero froze Zetton with his Freeze Ray and SSJG SpongeBob finished Zetton by using SpongeBob Slash. Zetton turned back into Shang Tsung and disappears. Cyber Sub-Zero and SSJG SpongeBob teleport back into the party. SSJG SpongeBob back in here, but Cyber Sub-Zero is gone. The sillhouette of Cyber Sub-Zero told SSJG SpongeBob to remember that great power comes with great responsibility and disappears.

In episode 8.5, someone frozed Golgolem and it was Cyber Sub-Zero who appears. An invisible Neronga appears to electrocute Cyber Sub-Zero with Electric Bolt. Because of that, Squidward fights with Neronga to avenge Cyber Sub-Zero. Neronga turned visible and unfroze Golgolem. Both Neronga and Golgolem tried to kill Cyber Sub-Zero, but ZX finished them by using ZX Punch. Cyber Sub-Zero thanking ZX for saving his life and fly away. Later at the Netherrealm, Cyber Sub-Zero appeared to froze Zaragas and Banpira. ZX, Squidward, and Cyber Sub-Zero fly away from the castle. Cyber Sub-Zero froze the castle with his Freeze Ray and Squidward turned into Captain Magma to blow the castle where Grangon, Lagoras, Zaragas, and Banpira are in here with Magma Spout and explodes. Captain Magma turns back to Squidward. But, Lagoras was survived and evolved himself. Evolved Lagoras spits a fireball at them and explodes. Evolved Lagoras tried to shoot Cyber Sub-Zero with Ice Beam, but it absorped the power and reflects on Evolved Lagoras, and it didn't affect him. ZX wakes up and throws his Cross Shuricane Bomber at Evolved Lagoras and explodes, but it still didn't affect him. ZX tried to finish Evolved Lagoras by using ZX Kick, but it didn't worked on him. Evolved Lagoras combined Ice Beam and Fireball into Fusion Blast towards them, but Squidward tried to defend them from the Fusion Blast and throws it back to Evolved Lagoras. ZX then used his ZX Kick to finish him. Bullton appears and summon EX Zetton. Squidward fights with EX Zetton while ZX and Cyber Sub-Zero fight with Bullton. Bullton used Dimensional Warping Beam Wave to move them off from him. ZX used Micro Chains to destroy the antenna. Meanwhile, Squidward fight with EX Zetton. EX Zetton throws a Trillion Meteor at Squidward, but it didn't affect. Squidward turned into Captain Magma again and shoots Magma Spouts at EX Zetton, but it absorp the power. Captain Magma turned back into Squidward again. EX Zetton shoots the blue ray towards Squidward, but Squidward dodged it. Squidward jumps and finished EX Zetton with Squidward Kick and exploded him. Meanwhile, ZX and Cyber Sub-Zero are still fighting with Bullton. Cyber Sub-Zero froze Bullton with his Freeze Ray and ZX finished Bullton with ZX Kick. After that, Squidward teleport ZX and Cyber Sub-Zero to Bikini Bottom. Cyber Sub-Zero and ZX turned back into Ryo are leaving Bikini Bottom and thanking Squidward for everything.

In episode 9, Cyber Sub-Zero appears to defeat Shang, Diend, Baron, and Hipporito, then froze Plankton with Freeze Ray. The sillhouette of Gatanozoa appears and killed Cyber Sub-Zero then disappears.

In episode 10 at the World of Spirits, SpongeBob just got in here after he got defeated by Scarlet. Cyber Sub-Zero and Squidward appeared. Cyber Sub-Zero tells SpongeBob that his friends wanted to help him defeat Galactic Empire. The souls of SpongeBob's friends just combined their powers for SpongeBob and Squidward. He also appeared in the flashback where SSJG SpongeBob defeated Dragon King Onaga.

In episode 11, his powers are still remained in Squidward S' powers. Later after the final battle, SpongeBob S, Squidward S, and their friends are seperated from their powers. Drive turns back into Shinnosuke and leaves, and as for Takeshi, Over Lord Kouta, Cyber Sub-Zero, and Asuka leaves too. Then the gang proceed to fix the Bikini Bottom. Many days later, everyone had a vacation at Goo Lagoon now. But, Rainbow Tyrant come to the beach and said that he feels good now, which made all of the characters from the series laughing. After the laughing is over, Rainbow Tyrant leaves, thus the end of the old series.

According to Bancha Manasookcharoen, Cyber Sub-Zero is not a villain (even though he put him in the villains side in the second opening of the new series). He just put him as the final pronounce of villains just to make him such a "secret character".